Chains and heterogens:
PDB Chain Sequences:
>1bg1A (A:) vvtekqqmleqhlqdvrkrvqdleqkmkvvenlqddfdfnyktlksqgdmqdlngnnqsv trqkmqqleqmltaldqmrrsivselagllsameyvqktltdeeladwkrrqqiaciggp pnicldrlenwitslaesqlqtrqqikkleelqqkvsykgdpivqhrpmleerivelfrn lmksafvverqpcmpmhpdrplviktgvqfttkvrllvkfpelnyqlkikvcidkdsgdv aalrgsrkfnilgtntkvmnmeesnngslsaefkhltlreqrcgnggrancdaslivtee lhlitfetevyhqglkidlethslpvvvisnicqmpnawasilwynmltnnpknvnfftk ppigtwdqvaevlswqfssttkrglsieqlttlaekllgpgvnysgcqitwakfckenma gkgfsfwvwldniidlvkkyilalwnegyimgfiskererailstkppgtfllrfsessk eggvtftwvekdisgstqiqsvepytkqqlnnmsfaeiimgykimdatnilvsplvylyp dipkeeafgkycrpesqehpeadpgsaapylktkficvtpf
>1bg1A (A:) vvtekqqmleqhlqdvrkrvqdleqkmkvvenlqddfdfnyktlksqgdsvtrqkmqqle qmltaldqmrrsivselagllsameyvqktltdeeladwkrrqqiaciggppnicldrle nwitslaesqlqtrqqikkleelqqkvsykgdpivqhrpmleerivelfrnlmksafvve rqpcmpmhpdrplviktgvqfttkvrllvkfpelnyqlkikvcidkdsgdvaalrgsrkf nilgtntkvmnmeesnngslsaefkhltlreqrcgnggrancdaslivteelhlitfete vyhqglkidlethslpvvvisnicqmpnawasilwynmltnnpknvnfftkppigtwdqv aevlswqfssttkrglsieqlttlaekllgpgvnysgcqitwakfckenmagkgfsfwvw ldniidlvkkyilalwnegyimgfiskererailstkppgtfllrfsesskeggvtftwv ekdisgstqiqsvepytkqqlnnmsfaeiimgykimdatnilvsplvylypdipkeeafg kycraapylktkficvtpf